html, body {
    font: 14px/1.5 "PingFang SC", "微软雅黑", "Microsoft YaHei", Helvetica, "Helvetica Neue", Tahoma, Arial, sans-serif;
    color: #1c1f21;
}

.swiper-slide > img {
    width: 100%;
    height: 236px;
}

.swiper-container {
    text-align: center;
    margin-top: 70px;
    width: 90%;
}

.nice-block {
    margin: 0;
    padding-left: 90px;
    padding-top: 20px;
}

.course-style {
    margin-left: 20px;
    margin-bottom: 20px;
    padding: 0;
}

.course-style img:hover {
    transform: scale(1.1);
}

.course-card {
    margin-top: 10px;
}

.course-card > span {
    margin-left: 10px;
    padding: 0;
}

h1 {
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0;
    margin-inline-end: 0;
    text-align: center;
    font-weight: bold;
    font-size: 40px;
    text-shadow: 0 2px 0 #A0F0A0;
}

h5{
    text-align: center;
}

.course-banner {
    width: 216px;
    height: 120px;
    background-color: #f3f5f7;
    border-radius: 10px;
}

a:link, a:visited {
    color: #1c1f21;
    text-decoration: none;
}

a:hover {
    border-radius: 6px;
    background: rgba(242, 13, 13, .06);
    color: #f20d0d;
}

.hr-style { /*透明渐变水平线*/
    margin: 0 auto;
    border: 0;
    height: 4px;
    background: #333 linear-gradient(to right, red, #333, rgb(9, 206, 91));
}